Tranducers and measurement

What is measurement??

It is the act or a result of a quantitative comparison between a predetermined standard and an unknown magnitude.

As a Instrumentation and Control Engineer we are generally dealing with four types of measurement.

1) Temperature measurement

2) flow measurement

3) pressure measurement

4) Level measurement

What is Temperature ?? 

Temperature is a degree of hotness or coldness or in simple words it is a degree of heat.

There are three ways to transfer heat according to thermodynamics
1) conduction:- which only takes place between two solids
2) convection :- from surface to moving fluid
3) Radiation :- between two surfaces which emits radiation.

effects of this heat transfer
1) it changes body's physical or chemical state
2) change in physical dimension
3) change in electrical properties
4) generation of EMF ( electromotive force ) at the junction of two dissimilar metals
5) change in intensity of emitted radiation

for temperature measurements we are dealing with different sensors and transducers based on this five effects.

about different sensors and transducers I post soon..

till that enjoy Reading....!!😊